EFFICIENCY OF THREE INSECTICIDES AGAINST THE FIG BORER HYPOTHENEMUS ERUDITUS WESTWOOD ON FIG, FICUS CARICA AT DAR EL-RAMAD, FAYOUM.

Document Type : Research articles.

Author

Plant protection Research institute, A. R. C., Ministry of Agriculture

Abstract

The experimentation was carried out during two successive seasons,
(2015 and 2016) on mature Fig trees farm, at Dar-Ramad, Fayoum
Governorate. Three chemicals, Diazenox 60%, Cidial L
50 % and Renoban
48%, were tested against the bark beetle
Hypothenemus eruditus
(Westwood) on Fig trees. Three concentrations of each 1.5, 3.0 and
4.5cm
3/1-liter water were used in addition to water alone as untreated
control (untreated cuts). Counting entrance and exit holes, cidial L
50 was the
most effective insecticide where no holes were observed in the treated cuts
at all concentrations, in both seasons with Renoban, the number of entrance
holes was low with no exit holes in the 1
st season and 5.7 holes/cut on cuts
treated with 4.5cm/liter in the 2
nd season. Diazenox was the least efficient
where, after two months of exposure, there was no difference in infestation
(14.2 holes/cut) between those treated with 1.5% conc. and the untreated.
Results in both season were similar.


Main Subjects